XML 70 R54.htm IDEA: XBRL DOCUMENT v3.4.0.3

Development and License Agreements - Additional Information (Detail) $ in Thousands, € in Millions	3 Months Ended			12 Months Ended
	Mar. 31, 2016 USD ($)	Mar. 31, 2016 EUR (€)	Mar. 31, 2015 USD ($)	Dec. 31, 2016 EUR (€)	Mar. 31, 2016 USD ($)	Mar. 31, 2016 EUR (€)	Dec. 31, 2015 USD ($)	Dec. 31, 2015 EUR (€)
Licenses Agreements [Line Items]
Manufacturing and development obligations-current	$ 2,219				$ 2,219		$ 3,282
Manufacturing and development obligations-non-current	4,840				4,840		4,542
Payments made relating to the manufacturing of the products	3,600		$ 4,700
Amounts due from Fresenius	900				900		200
Other current assets
Licenses Agreements [Line Items]
Research and development assets	3,700				3,700		4,100
Other assets
Licenses Agreements [Line Items]
Manufacturing efficiency assets	2,300				2,300		2,400
Fresenius
Licenses Agreements [Line Items]
Allocated amount for research and development activities	4,800				4,800
Manufacturing efficiency activity cost	2,400				2,400
Manufacturing and Supply Agreement
Licenses Agreements [Line Items]
Accrual for manufacturing of entity products	3,200				3,200		2,500
Manufacturing and Supply Agreement | Fresenius
Licenses Agreements [Line Items]
Accrual for manufacturing and development of entity products	7,000				$ 7,000	€ 6.2	7,800	€ 7.2
Manufacturing and development obligations, discount rate					9.72%
Manufacturing and development obligations-current	2,200				$ 2,200	1.9	3,300	3.0
Manufacturing and development obligations-non-current	4,800				$ 4,800	€ 4.3	$ 4,500	€ 4.2
Manufacturing and development payments	$ 1,200	€ 1.1
Scenario Forecast | Manufacturing and Supply Agreement | Fresenius
Licenses Agreements [Line Items]
Payments made based on the successful achievement of production volumes | €				€ 8.6

X

- Definition

Accrual For Manufacturing And Development Payment Liability

+ References

No definition available.

+ Details

Name:	cers_AccrualForManufacturingAndDevelopmentPaymentLiability
Namespace Prefix:	cers_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Accrual for Manufacturing and Development Payment Liability, Current

+ References

No definition available.

+ Details

Name:	cers_AccrualForManufacturingAndDevelopmentPaymentLiabilityCurrent
Namespace Prefix:	cers_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Accrual for Manufacturing and Development Payment Liability, Noncurrent

+ References

No definition available.

+ Details

Name:	cers_AccrualForManufacturingAndDevelopmentPaymentLiabilityNoncurrent
Namespace Prefix:	cers_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Accrual for Manufacturing of Entity Products

+ References

No definition available.

+ Details

Name:	cers_AccrualForManufacturingOfEntityProducts
Namespace Prefix:	cers_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Licenses Agreements [Line Items]

+ References

No definition available.

+ Details

Name:	cers_LicensesAgreementsLineItems
Namespace Prefix:	cers_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Manufacturing And Development Payment Liability

+ References

No definition available.

+ Details

Name:	cers_ManufacturingAndDevelopmentPaymentLiability
Namespace Prefix:	cers_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Manufacturing Efficiency Assets

+ References

No definition available.

+ Details

Name:	cers_ManufacturingEfficiencyAssets
Namespace Prefix:	cers_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Payment for manufacturing of entity products.

+ References

No definition available.

+ Details

Name:	cers_PaymentForManufacturingOfEntityProducts
Namespace Prefix:	cers_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Payment Liability Allocated To Development Activities

+ References

No definition available.

+ Details

Name:	cers_PaymentLiabilityAllocatedToDevelopmentActivities
Namespace Prefix:	cers_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Payment Liability Allocated To Manufacturing Activities

+ References

No definition available.

+ Details

Name:	cers_PaymentLiabilityAllocatedToManufacturingActivities
Namespace Prefix:	cers_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Payments For Manufacturing And Development Cost

+ References

No definition available.

+ Details

Name:	cers_PaymentsForManufacturingAndDevelopmentCost
Namespace Prefix:	cers_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Unamortized Deferred Cost For Development Activities

+ References

No definition available.

+ Details

Name:	cers_UnamortizedDeferredCostForDevelopmentActivities
Namespace Prefix:	cers_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Carrying amount as of the balance sheet date, net of allowance for doubtful accounts, of account and note receivables due from other than related parties.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3-4)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_AccountsAndNotesReceivableNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

+ Details

Name:	us-gaap_FairValueInputsDiscountRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_OtherCurrentAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_OtherAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=cers_FreseniusKabiAGMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=cers_ManufacturingAndSupplyAgreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementScenarioAxis=us-gaap_ScenarioForecastMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: